25 Questions
Which type of conductance cannot be directly measured in the laboratory?
Molar conductance
What is the primary function of a calomel electrode (CE)?
Act as a reference electrode in electrochemical measurements
In which type of titration can conductometric titration be most effectively applied?
Strong acid vs. strong base
What is the role of a glass electrode (GE) in electrochemistry?
Determine the concentration of ions in solution
Which type of substances form ions in solution and conduct an electric current?
Electrolytes
What is the reciprocal of resistance (R) in terms of conductance (G)?
Specific conductance
What is equivalent conductance (Λeq) of an electrolyte defined as?
Total conductance of all the ions produced after dissolving one gram-equivalent of the electrolyte in given volume
What determines the value of resistivity or specific resistance (ρ) of a conductor?
Material of the conductor
What does molar conductance (Λm) represent?
Conductance of one mole of an electrolyte when dissolved in a certain volume
Which factor does the specific conductance increase with?
Ionic concentration
Which of the following is an example of an electrolyte?
Copper (II) sulphate
What property classifies substances like sodium chloride and potassium nitrate as electrolytes?
Formation of ions in solution
Which type of electrode is used for the determination of pH in electrochemistry?
Glass electrode (GE)
What does the Nernst equation primarily relate to in electrochemistry?
Electrode potential
In terms of conductivity, which category would a superconductor fall under?
Perfect conductor
What is the main principle behind conductometric titrations in electrochemistry?
Monitoring changes in conductance
What is the reciprocal of resistance (R) in terms of conductance (G)?
G = 1/R
What determines the value of resistivity or specific resistance (ρ) of a conductor?
Temperature
Which type of conductance cannot be directly measured in the laboratory?
Molar conductance
What does molar conductance (Λm) represent?
The conductance of all the ions produced by one mole of an electrolyte in a certain volume
Which factor does the specific conductance increase with?
Ionic concentration
In which type of titration can conductometric titration be most effectively applied?
Acid-base titration
What is equivalent conductance (Λeq) of an electrolyte defined as?
The total conductance of all the ions produced after dissolving one gram-equivalent of the electrolyte in water
What type of substances form ions in solution and conduct an electric current?
Electrolytes
What does specific conductance increase with?
Ionic concentration and speeds of the ions concerned
Test your knowledge about electrochemistry, conductance, and conductometric titrations with this quiz. Questions cover topics such as specific, equivalent, and molar conductance, principles, and applications of conductometric titrations, and various types of acid-base reactions. Prepare for your engineering chemistry exam with this comprehensive quiz.
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